EMD (Empirical Mode Decomposition) is a classic adaptive method for solving non-stationary signal problems [1]}. This method utilizes the signal extreme point information to decompose the signal into several IMFs (Intrinsic Mode Functions). However, the modal aliasing problem of EMD will cause severe sawtooth lines in the time-frequency distribution and makes certain eigenmode functions lose their physical meaning, which leads to the degradation of the performance of EMD.
